## Description
Generate Python wrapper for operators in the NDArray APIs do not have the
correct function declaration (argument list).
## Error Message:
`Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<string>", line 59, in softmax
File
"/Users/sskalic/projects/mxnet/sskalic_branch5/python/mxnet/_ctypes/ndarray.py",
line 92, in _imperative_invoke
ctypes.byref(out_stypes)))
File "/Users/sskalic/projects/mxnet/sskalic_branch5/python/mxnet/base.py",
line 252, in check_call
raise MXNetError(py_str(_LIB.MXGetLastError()))
mxnet.base.MXNetError: [17:09:02]
src/c_api/../imperative/imperative_utils.h:336: Check failed: num_inputs ==
infered_num_inputs (0 vs. 1) Operator softmax expects 1 inputs, but got 0
instead.
Stack trace returned 7 entries:
[bt] (0) 0 libmxnet.so 0x0000000103e98ae6
dmlc::StackTrace() + 1238
[bt] (1) 1 libmxnet.so 0x0000000103e984d5
dmlc::LogMessageFatal::~LogMessageFatal() + 53
[bt] (2) 2 libmxnet.so 0x0000000103e94655
dmlc::LogMessageFatal::~LogMessageFatal() + 21
[bt] (3) 3 libmxnet.so 0x00000001067a895c
mxnet::imperative::SetNumOutputs(nnvm::Op const*, nnvm::NodeAttrs const&, int
const&, int*, int*) + 988
[bt] (4) 4 libmxnet.so 0x00000001067a5612
MXImperativeInvokeImpl(void*, int, void**, int*, void***, int, char const**,
char const**) + 210
[bt] (5) 5 libmxnet.so 0x00000001067a8e08
MXImperativeInvokeEx + 184
[bt] (6) 6 _ctypes.so 0x000000010319a7b7
ffi_call_unix64 + 79
`
The expected error message should be of the form:
`
TypeError: softmax() takes exactly # arguments (0 given)
`
## Minimum reproducible example
`
import mxnet as mx
mx.nd.softmax()
`
## Steps to reproduce
Execute above code
## What have you tried to solve it?
There is a deep underlying problem with the way we generate wrappers
"on-the-fly". Heres an example:
`# generic/unsafe function definition
def sam1(*args, **kwargs):
print(args)
print(kwargs)
# specific function definition
def sam2(size,joe):
print(size)
print(joe)
#valid function calls
sam1(2,joe=4)
sam2(2,joe=4)
#invalid function calls that do not fail
sam1(1,2,3)
sam1(2,bob=4)
# invalid function calls that do fail
try:
sam2(1,2,3)
except TypeError as e:
print('Dont do that! ',e)
try:
sam2(2,bob=4)
except TypeError as e:
print('Dont do that! ',e)
`
[ Full content available at:
https://github.com/apache/incubator-mxnet/issues/12286 ]
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